问题

The machine has ______ again; I think we’d better buy a new one.
A:broken off
B:broken up
C:broken into
D:broken down
B:broken up
C:broken into
D:broken down
正确答案是:
同类题型
In order to find the missing child, villagers _____ all they can over the past five hours.
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Whenever you meet withdifficulties, you can ask the policeman ____help.